Hi Mark, I am interested in doing the same thing (i.e. a basic hall effect sensor connected to the encoder channel on BB Blue). Can you provide more details on how you got it to work? How did you change the control registers in the eQEP hardware? Could you provide a code sample that I could use?
Justin On Sunday, June 25, 2017 at 2:12:34 PM UTC-6, Mark Barton wrote: > > On 6/25/17 3:20 PM, Przemek Klosowski wrote: > > > On Fri, Jun 23, 2017 at 10:05 AM, Clark Sann <[email protected] > <javascript:>> wrote: > >> Since you don’t care about direction, for now, you might try hooking the >> encoder to just the A channel. > > > If the decoder is in quadrature mode, this probably won't work---it needs > the B channel signalling to disambiguate the direction, so I think the > counter will not change. This is just my guess based on general knowledge, > so I may be wrong---check it for yourself. > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To view this discussion on the web visit > <https://groups.google.com/d/msgid/beagleboard/CAC%3D1GgF8b1KVXTRh%2B3qw_Gg1RjQHhtV74TK1r_fXGizWruBs5Q%40mail.gmail.com?utm_medium=email&utm_source=footer> > https://groups.google.com/d/msgid/beagleboard/CAC%3D1GgF8b1KVXTRh%2B3qw_Gg1RjQHhtV74TK1r_fXGizWruBs5Q%40mail.gmail.com > . > For more options, visit https://groups.google.com/d/optout. > > Yep as you and Clark have surmised, neither connecting the pulse to A and > B would work nor connecting just the A input. The counter would sometimes > decrement if A and B were connected, and the counter would simply toggle > from 1 to -1 if only A was connected. > > However the good news is I was able to get it to work by changing one of > the control registers in the eQEP hardware to a simple up count. The > encoder pulse is connected to the A input whereas B is not used. The pulse > count is now solid on both channels. > > Mark > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/0a66ef55-6f2a-4e70-9e53-0d37b460c3e8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
